Allen County, Louisiana
10 ZIP codes · Avg score 75/100 · Grade B · Updated 2026-06-03
In recent assessments, Allen County's 10 ZIP codes record strong, consistent water safety outcomes.
How Allen County Compares
How Allen County Compares
Allen County scores 4 points above the Louisiana state average (71/100) and 7 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Allen County, Louisiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.9 (asthma 10.1%, diabetes 15.1%)
Estimated additional annual cost per homeowner: $4,381, driven primarily by sea_level
Infrastructure: 0.32% avg pipe failure probability, 10% of ZIPs at high risk
47.6% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
↑ Worsening trendEPA violation counts by year across Allen County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 10 violations. Past 5 years: 19 total (19 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $4,381
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
9,518 housing units in Allen County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Allen County
Remediation costs are relatively manageable for most homeowners in Allen County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Allen County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Allen County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Town of Oberlin Water System | 2,730 | 14 |
| 2 | Town of Kinder Water System | 3,228 | 11 |
| 3 | City of Oakdale Water System | 6,114 | 9 |
| 4 | Allen Parish Ww District No 1 | 1,266 | 9 |
| 5 | Ward Iv Water District | 840 | 9 |
13 total water systems serve Allen County.
All ZIP Codes in Allen County
10 ZIP codes tracked in Allen County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 70638 | Elizabeth | 95 | A | 0 | — |
| 2 | 70644 | Grant | 95 | A | 1 | $57K |
| 3 | 70658 | Reeves | 95 | A | 0 | $109K |
| 4 | 70655 | Oberlin | 84 | B | 5 (3 health) | $79K |
| 5 | 70648 | Kinder | 81 | B | 6 (4 health) | $143K |
| 6 | 71463 | Oakdale | 72 | B | 9 (5 health) | $112K |
| 7 | 70637 | Dry Creek | 60 | C | 0 | $219K |
| 8 | 70654 | Mittie | 60 | C | 0 | — |
| 9 | 70662 | Sugartown | 60 | C | 0 | $150K |
| 10 | 70651 | Leblanc | 52 | D | 0 | $61K |
Recommended Buyer Guides for Allen County
Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Allen County, Louisiana
Overview
Allen County in Louisiana covers 10 ZIP codes with an average Home Safety Score of B (75/100).
4 of 10 ZIP codes have recorded EPA violations. 12 health-based violations have been documented.
← Back to Louisiana water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.